The Ultimate Cooling Solution for any Aprilia RS660 Race/Track Bike
The Aprilia RS660 (any model, including the track-spec Trofeo bikes) is equipped with a stock oil/water heat exchanger, designed to:
- Rapidly warm up the oil at startup using heat from the coolant
- Cool the oil at operating temperature by transferring excess heat to the coolant.
While effective for street riding, this system struggles during trackdays, high-performance racing conditions and racing events.
RS660 cooling issues in track and road racing uses
In track and road racing use, the heat management is a critical issue:
- Coolant temperatures rise beyond the radiator’s dissipation capacity.
- Oil overheats quickly as the coolant cannot absorb enough excess heat.
- When coolant reaches 100°C, the ECU limits engine performance, reducing ignition timing advance. If your dash displays four dots, power output is reduced.
- Oil temperatures can exceed 150°C, causing a loss of cooling efficiency for critical engine components. Expecially the pistons, which rely on oil jets for cooling.
Excessively high oil temperatures lead to premature pistons and cylinders wear, deformation, detonation, and knocking (pinging).
How to prevent Aprilia RS660 overheating
To manage engine temperatures in track-dedicated RS660, rider usually do the following steps:
- Remove the stock thermostat valve to improve coolant flow and lower temperature.
- Upgrade the cooling system with a larger radiator, additional cooling radiator, or a high-performance coolant pump.
However, even if these upgrades helps in managing coolant overheat, oil temperatures can still reach crazy temperatures, which remains too high for sustained performance.
Aftermarket additional coolant/water radiators are not the right answer.
Gabro Racing RS660 oil cooler kit: the ultimate racing solution
After two years of testing in professional racing, our RS660 oil cooler kit completely eliminates overheating issues in race-prepared RS660 motorcycles, even when using the stock coolant radiator.
With our Aprilia RS660 oil cooler kit, you will experience:
- Significantly lower oil temperatures, maintaining 110°C or less under race conditions.
- Coolant temperature stabilized around 80°C, even in extreme summer heat or long-distance endurance races.
- Increased engine oil capacity by 400cc (from 2.3L to 2.7L), improving lubrication stability and thermal efficiency.
- Increased engine reliability and reduced wear, improving performance consistency throughout a full racing season.
Proven performance in track and road racing
The RS660 Oil Cooler Kit has been rigorously tested in lightweight racing classes, both on track and in road racing. With feedback from over 30 race teams worldwide, it has consistently delivered:
- Premium build quality for durability in demanding conditions
- Precise fitment for seamless installation and hi compatibily with many exhaust systems and race fairings
- Exceptional heat management in both sprint and endurance races
Engineered for efficiency, reliability, and long-term performance, this kit is a must-have upgrade for serious RS660 race teams and privateers.
Technical features of the RS660 Oil Cooler Kit
Designed for maximum durability in racing conditions:
- Positioned within the bike’s lateral profile to minimize exposure and reduce crash damage.
- Spare parts readily available for order, ensuring long-term reliability.
- Includes a complete spare O-ring set and spare lock-wiring components.
- Precise and complete fitting instructions included.
Uses the Aprilia Tuareg 660 OEM oil filter (P/N 82960R) to ensure total OEM oil
filtration – one oil filter is included in the kit.
Oil filter sandwich plate with sensor compatibility:
- Pre-machined port for optional temperature or pressure sensors, fully compatible with datalogging equipment. Just complete the drilling and tap the port to match the sensor you use.
Complete installation hardware and brakets included.
Premium OEM-standard braided oil lines with integrated safety lock-wiring guards as
required by racing rules. All oil lines and fitting have 10mm ID to ensure plenty of flow and
no restriction point giving the lesser possible pressure differential.
Lightweight construction in a mix high quality billet and laser-cut parts and a very big but lightweight aluminium-made racing oil radiator, completely hand-crafted. All parts are made in Italy.
Optimized hose routing for ease of installation and maintenance:
- HOT/COLD connections are positioned on the left side of the radiator, ensuring compatibility with a wide range of aftermarket exhaust systems.
- Thoughtfully designed hose layout reduces service time—no need to remove the oil radiator during routine track maintenance or repairs, as the hoses provide enough flexibility to allow radiator movement without disconnecting the lines.
The kit is supplied standard with a coolant thermostat bypass kit: it maximize the coolant flow to the radiator but it may need radiator manual taping adjustment. Optional 82°C coolant thermostat available (stock is 89°C), providing stable coolant temperatures without the need for radiator taping.
Why choose a Gabro Racing oil cooler kit?
When it comes to race-proven performance and reliability, the Gabro Racing RS660 Oil Cooler Kit stands out as the ultimate choice for serious racers and privateers. Here’s why:
- Engineered for competition: Developed through two years of rigorous testing in professional racing, ensuring unmatched durability and efficiency on the track.
- Superior heat management: Unlike other cooling solutions, our kit effectively reduces oil temperatures to 110°C or lower while keeping coolant temperatures stable at around 80°C, even in extreme racing conditions.
- No need for expensive cooling upgrades: Our kit eliminates the need for oversized radiators, aftermaket additional radiators or complex cooling system modifications—delivering optimal temperature control with the stock coolant radiator.
- Precision fit & easy maintenance: Designed for seamless integration with the RS660, with thoughtfully routed hoses that eliminate the need to remove the oil radiator during standard maintenance.
- Proven by top racing teams: Trusted by over 30 race teams worldwide, with consistent
results in both sprint and endurance events.
For racers looking for a no-compromise, high-performance cooling solution, the Gabro Racing RS660 oil cooler Kit is the upgrade that makes the difference. Keep your engine running cooler, longer, and stronger – race after race.
Installation considerations for sportbike racing and road racing
- Depending on the track bodywork used, you may need to enlarge the chin opening to accommodate and give enough air flow to the oil cooler.
- Ensure proper hose clearance inside the belly pan—some adjustments or protective rubber sleeves may be needed to prevent rubbing.
Regulatory compliance for racing
This kit meets (*) the technical regulations of BSB (British Superbike), IDM (Internationale Deutsche Motorradmeisterschaft), and CIV (Campionato Italiano Velocità) Sportbike
rulebooks and is priced within the required price cap.
This kit meets (*) the technical regulation of MotoAmerica Twins Cup and Tourist Trophy SuperTwin.
(*) Check your racing class regulations: before installation, verify compliance with the current update of the technical rules of your specific race series. If in doubt, ask the promoter.
Important notes
Race Use Only: This product is designed exclusively for closed-circuit racing and road
racing. Use is at your own risk. Professional installation is mandatory.
Please download the fitting manual here: https://www.gabroracing.com/manuals/
